package javabase.schoolwork.day6_11;

/**
 * @author fance
 * @date 18-6-11 下午6:38
 */
public interface IBook {
     String name = null;
     String author = null;
     String wide = null;
     Double price = null;
    String getName();
    String getAuthor();
    Double  getPrice();

    
}
